Yeah, it would've been better if nobody had put a stop to this: http://en.wikipedia.org/wiki/Nanking_Massacre
Japanese war crimes
Contest to kill 100 people using a sword
The Nanking Massacre or Nanjing Massacre, also known as the Rape of Nanking, was a mass murder and war rape that occurred during the six-week period following the Japanese capture of the city of Nanjing (Nanking), the former capital of the Republic of China, on December 13, 1937 during the Second Sino-Japanese War. During this period hundreds of thousands of Chinese civilians and disarmed soldiers were murdered and 20,000–80,000 women were raped by soldiers of the Imperial Japanese Army.
The massacre remains a contentious political issue, as various aspects of it have been disputed by some historical revisionists and Japanese nationalists, who have claimed that the massacre has been either exaggerated or wholly fabricated for propaganda purposes. As a result of the nationalist efforts to deny or rationalize the war crimes, the controversy surrounding the massacre remains a stumbling block in Sino-Japanese relations, as well as Japanese relations with other Asia-Pacific nations such as South Korea and the Philippines.
An accurate estimation of the death toll in the massacre has not been achieved because most of the Japanese military records on the killings were deliberately destroyed or kept secret shortly after the surrender of Japan in 1945. The International Military Tribunal of the Far East estimates more than 200,000 casualties in the incident; China's official estimate is about 300,000 casualties, based on the evaluation of the Nanjing War Crimes Tribunal. Estimates from Japanese historians vary widely, in the vicinity of 40,000–200,000. Some historical revisionists even deny that a widespread, systematic massacre occurred at all, claiming that any deaths were either justified militarily, accidental or isolated incidents of unauthorized atrocities. These negationists claim that the characterization of the incident as a large-scale, systematic massacre was fabricated for the purpose of political propaganda.
Although the Japanese government has admitted the acts of killing of a large number of noncombatants, looting and other violence committed by the Imperial Japanese Army after the fall of Nanking, some Japanese officials have argued that the death toll was military in nature and that no such crimes ever occurred. Denial of the massacre (and a divergent array of revisionist accounts of the killings) has become a staple of Japanese nationalism. In Japan, public opinion of the massacres varies, and few deny the occurrence of the massacre outright. Nonetheless, recurring attempts by negationists to promote a revisionist history of the incident have created controversy that periodically reverberates in the international media, particularly in China, South Korea, and other East Asian nations.
Pick any war and you'll find war crimes and atrocities. American, Japanese, Russian, Korean, Bolivian, Australian...It has nothing to do with race or nationality. Read a fu-king book, people.